All up, the RXC weighs just 900kg, which means it isn’t just quick but crackers fast in a straight line. Radical claims a 0-60mph time of just 2.8sec with a top speed limited by the relatively short gearing in seventh to “just” 175mph.

They don’t quote a 0-100mph time just yet, but having spent a day howling around the Yorkshire moors in it I’d guess it could hit three figures in a fair bit less than seven seconds. Which puts it very much in the premier league when it comes to outright acceleration.

At low speeds, so let’s say anything under 50mph, you can’t really feel that prodigious downforce. Instead, all you notice is how relatively un-dreadful the ride is and how crisp the steering seems; Radical worked hard to get the damping of the all-round double wishbone suspension to a level that would ensure the car had a half decent ride quality, and I’d say they hit the bullseye on that one – because amazingly it rides pretty well.

As soon as you venture beyond 60mph, though, and ideally a fair bit higher than that on a track, you can feel the stability levels going up, front and rear, and the steering also gets a touch meatier. And yet... if you then really lean on it and get it to start sliding around – there is no traction control and no ABS – it’s actually rather well behaved.

There’s no precipice of grip that you walk up to and then just fall straight off; instead, when it goes, it goes gradually. On a track, therefore, I’m sure this car would be a) phenomenally rapid compared with other cars of a similar price, but also b) an absolute peach to throw around on account of its handling being so friendly. As a combination, that’s no small achievement on behalf of the RXC’s chassis engineers.

It also sounds deliciously potent, inside and out. You’d never guess that its engine is from a humble Ford given the range of exotic noises it gives off under full bore acceleration. It’s the same engine that Ginetta uses in the excellent G60, but it sounds even angrier in this case, and feels even more potent, which is saying something.

A less than brilliant aspect of the RXC is the way you enter it, or climb back out of it. So wide are its sills that the only way you can enter it realistically is by flinging open the gullwing door, then treading all over the seat and inserting yourself into its guts as elegantly as you can.

Which is to say, not very. If it’s raining you’ll get whatever is on the bottom of your shoes all over the seats. Those in this test car fortunately weren’t covered in the expensive leather hides that Radical hopes many RXC customers will end up specifying.

Another as yet unresolved issue is the gearchange, specifically the smoothness of the upshifts and the lack of a proper blip during donwshifts. Use the clutch conventionally up or down and there’s no problem, of course, but if you make a full steam upchange and don’t use the clutch, the corresponding wallop in the back isn’t entirely pleasant, even if the shift itself happens in microseconds. Radical realises there’s a bit of work to be done here, however, and is continuing to tweak the software to make the shifts a touch less manic.

When they sort that gearchange, the RXC will be something else. As it stands it’s already one of the more surprising cars we’ve driven this year, not simply for its sheer speed across the ground but for the quality of its execution and its composure at high speed thanks chiefly to the downforce.

It’s expensive at a whisker under £100k, true, but then there’s nothing else quite like it to drive right now, not at this price point or, indeed, at any price point come to think of it.

As a track day car it is sensational, and as a road car it is completely nuts. And that’s nuts as in smashing-super-great. No wonder Radical’s order books are full.